We have intermittent operation and some tiling with the DQT1000 units. The signal will drop out intermittently.

Intermittent loss of signal is usually associated with inadequate signal getting to the transcoder. The front panel SNR reading must be above the 15 dB threshold level for an 8VSB signal, above 23 dB for 64 QAM, and above 27 dB for 256 QAM. Typical SNR readings are above 25.